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2472705 = 32554949
BaseRepresentation
bin1001011011101100000001
311122121220200
421123230001
51113111310
6124555413
730006024
oct11335401
94577820
102472705
111439864
129b2b69
13687651
144851bb
1533c9c0
hex25bb01

2472705 has 12 divisors (see below), whose sum is σ = 4286100. Its totient is φ = 1318752.

The previous prime is 2472703. The next prime is 2472719. The reversal of 2472705 is 5072742.

It can be written as a sum of positive squares in 2 ways, for example, as 831744 + 1640961 = 912^2 + 1281^2 .

It is not a de Polignac number, because 2472705 - 21 = 2472703 is a prime.

It is a super-2 number, since 2×24727052 = 12228540034050, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2472703) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27430 + ... + 27519.

It is an arithmetic number, because the mean of its divisors is an integer number (357175).

22472705 is an apocalyptic number.

It is an amenable number.

2472705 is a deficient number, since it is larger than the sum of its proper divisors (1813395).

2472705 is a wasteful number, since it uses less digits than its factorization.

2472705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54960 (or 54957 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 2472705 is about 1572.4837042081. The cubic root of 2472705 is about 135.2251387320.

The spelling of 2472705 in words is "two million, four hundred seventy-two thousand, seven hundred five".

Divisors: 1 3 5 9 15 45 54949 164847 274745 494541 824235 2472705